The hardcore part is ingesting it. I have chemical burns under my tongue from it. I have only been using 3ml once a day for 4 days. Can't make myself do the second dose at 6 hours later. This is really truly nasty tasting. Like fruit punch and turpentine. It is thick like molasses and you cant get it out of your mouth. My tongue stings for quite awhile after wards. It does work however even at half dose. If you are someone who cant take liquid cough syrup don't even think about this. It comes with a syringe and I put it as far back on my tongue as possible but it is sticky gooey and ends up in your mouth. At this cost I will finish the bottle if I can cuz it is working really well, but then I am going back to Meltdown, its slower but I can make myself take it.